Attribution of seasonal leaf area index trends in the northern latitudes with "optimally" integrated ecosystem models

Author:

Zhu, Z. C., S. L. Piao, X. Lian, R. B. Myneni, S. S. Peng and H. Yang

Abstract:

Significant increases in remotely sensed vegetation indices in the northern latitudes since the 1980s have been detected and attributed at annual and growing season scales. However, we presently lack a systematic understanding of how vegetation responds to asymmetric seasonal environmental changes. In this study, we first investigated trends in the seasonal mean leaf area index (LAI) at northern latitudes (north of 30 degrees N) between 1982 and 2009 using three remotely sensed long-term LAI data sets. The most significant LAI increases occurred in summer (0.009 m(2) m(-2) year(-1), p

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Page number:

4798-4813

Issue:

11

Subject:

Authors units:

PubYear:

2017

Volume:

23

Publication name:

Global Change Biology

Abstract:

Significant increases in remotely sensed vegetation indices in the northern latitudes since the 1980s have been detected and attributed at annual and growing season scales. However, we presently lack a systematic understanding of how vegetation responds to asymmetric seasonal environmental changes. In this study, we first investigated trends in the seasonal mean leaf area index (LAI) at northern latitudes (north of 30 degrees N) between 1982 and 2009 using three remotely sensed long-term LAI data sets. The most significant LAI increases occurred in summer (0.009 m(2) m(-2) year(-1), p